25-(1/5)x=18
x=35
Idk if this is what you're looking for, but this is what I think you want.
There are a total of 28 children in the choir (:
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Answer: 38568 3/4
Step-by-step explanation:
Volume(V) = lwh
Where l=length;w=width;h=height
V = 50 * 25 1/2 * 30 1/4
V = 38,568 3/4 or 38,568.75
it would be A or D for the math of d=-2
